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Monthly climate in Spetses, Greece

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Spetses features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 12 °C (53 °F) and 27 °C (81 °F) through the year, but rarely can drop to 3 °C (38 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 364 mm (14.3 inches) and receives 49 rainy days on the 1 mm (0.04 inches) threshold annually. Spetses enjoys an average of 3979 hours of sunshine throughout the year, and daylight varies from 9 hours 37 minutes to 14 hours 40 minutes per day.

Monthly average temperatures in Spetses, Greece

The warmest months in Spetses are July, August and September, with daily mean temperatures ranging from 25 to 27 °C (77 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 12 to 13 °C (53 - 56 °F) throughout the day. On average each year, Spetses experiences 82 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Spetses. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum21°C
(69°F)		18°C
(64°F)		19°C
(66°F)		22°C
(72°F)		26°C
(79°F)		29°C
(85°F)		33°C
(92°F)		34°C
(93°F)		31°C
(88°F)		27°C
(81°F)		24°C
(75°F)		20°C
(68°F)
Mean maximum17°C
(63°F)		17°C
(62°F)		18°C
(64°F)		21°C
(69°F)		25°C
(77°F)		28°C
(82°F)		32°C
(89°F)		31°C
(89°F)		29°C
(85°F)		25°C
(78°F)		22°C
(72°F)		19°C
(66°F)
Average high13°C
(56°F)		14°C
(57°F)		15°C
(59°F)		17°C
(63°F)		21°C
(70°F)		25°C
(77°F)		28°C
(83°F)		29°C
(84°F)		26°C
(79°F)		22°C
(72°F)		19°C
(66°F)		15°C
(60°F)
Daily mean12°C
(53°F)		13°C
(55°F)		13°C
(56°F)		16°C
(60°F)		20°C
(68°F)		24°C
(75°F)		27°C
(80°F)		27°C
(81°F)		25°C
(77°F)		21°C
(70°F)		18°C
(64°F)		14°C
(58°F)
Average low10°C
(51°F)		11°C
(53°F)		12°C
(54°F)		14°C
(58°F)		19°C
(66°F)		22°C
(73°F)		26°C
(78°F)		26°C
(79°F)		24°C
(75°F)		20°C
(68°F)		17°C
(62°F)		13°C
(56°F)
Mean minimum5°C
(42°F)		7°C
(45°F)		9°C
(48°F)		11°C
(52°F)		16°C
(61°F)		19°C
(67°F)		23°C
(74°F)		24°C
(75°F)		19°C
(67°F)		17°C
(63°F)		13°C
(56°F)		9°C
(48°F)
Minimum3°C
(38°F)		5°C
(41°F)		5°C
(41°F)		9°C
(49°F)		14°C
(58°F)		18°C
(65°F)		22°C
(72°F)		23°C
(73°F)		18°C
(64°F)		16°C
(60°F)		11°C
(53°F)		8°C
(46°F)

Compare climate in Spetses with other places

Compare temperature, precipitation, sunshine, UV index in Spetses, Greece with other places around the world.

Monthly average precipitation in Spetses, Greece

Spetses usually has the most precipitation in February, November and December, with an average of 8 rainy days and 55 mm (2.2 inches) of precipitation per month. The driest months in Spetses are June, July and August. On average, 6 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Spetses. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)53 (2.1)55 (2.1)35 (1.4)25 (1.0)11 (0.4)9 (0.3)2 (0.1)6 (0.2)32 (1.2)28 (1.1)55 (2.1)55 (2.2)
Average precipitation days (≥ 1 mm)874412012389

Monthly sunshine hours in Spetses, Greece

The sunniest months in Spetses are May, June and July, when the sun shines an average of 13 hours 23 minutes a day. Least sunny months in Spetses: January, February and December receive an average of 8 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Spetses. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours215263333346400410421394346319268258
Mean daily daylight hours9h 54m10h 48m11h 58m13h 9m14h 10m14h 40m14h 24m13h 31m12h 22m11h 11m10h 9m9h 37m

Solar UV radiation in Spetses, Greece

Spetses experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Spetses UV Index data.

Average daily maximum UV levels by month for Spetses. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)3568101010108743